IF NOT EXISTS (SELECT * FROM master.dbo.syslogins WHERE loginname = N'WIN2003PRUEBA\Administrador')
CREATE LOGIN [WIN2003PRUEBA\Administrador] FROM WINDOWS
GO
CREATE USER [WIN2003PRUEBA\Administrador] FOR LOGIN [WIN2003PRUEBA\Administrador] WITH DEFAULT_SCHEMA=[WIN2003PRUEBA\Administrador]
GO
